How much did PRAX move each index today?
XBI: PRAX moved +1.36% and contributed +0.03 points against the index's −1.42-point move, offsetting 2% of it, ranking #141 of 147 members by contribution to the move.
PRAX closed the 2026-08-25 session at 368.02; that day's move sits in the 48th percentile of its own past year. The stock is 4.7% below its 52-week closing high and +24.9% for the year so far.
PRAX in the XBI beyond today
| window | PRAX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −0.49% | −0.01 pts | +9.00 pts | #114 of 147 |
| 1 month | +16.54% | +0.30 pts | +18.53 pts | #18 of 147 |
| quarter to date | +9.93% | −0.01 pts | +10.87 pts | #90 of 147 |
| year to date | +24.86% | +0.09 pts | +47.19 pts | #98 of 147 |
Who moved with and against PRAX today?
On PRAX's side of the XBI tape: ERAS (+0.13 pts), SMMT (+0.09 pts), SRRK (+0.09 pts). Pulling the other way: MRNA (−0.30 pts), SYRE (−0.29 pts), RLAY (−0.10 pts).
Every member's contribution, top to bottom, is on the index dashboards; the day's story is in the market-close note. Machine-readable figures for this stock: /api/stock/PRAX, free to cite with attribution.